Electrical characteristics
STM32F103xx
5.2
Absolute maximum ratings
Stresses above the absolute maximum ratings listed in Table 4: Voltage characteristics,
Table 5: Current characteristics, and Table 6: Thermal characteristics may cause permanent
damage to the device. These are stress ratings only and functional operation of the device
at these conditions is not implied. Exposure to maximum rating conditions for extended
periods may affect device reliability.
Table 4.
Symbol
Voltage characteristics
Ratings
External 3.3 V supply voltage (including VDDA
Min
Max
Unit
VDD–VSS
–0.3
4.0
(1)
and VDD
)
V
Input voltage on five volt tolerant pin(2)
Input voltage on any other pin(2)
V
SS −0.3
+5.5
VDD+0.3
50
VIN
|∆VDDx
VSS −0.3
|
Variations between different power pins
Variations between all the different ground pins
50
mV
|VSSX −VSS
|
50
50
see Section 5.3.11:
Absolute maximum ratings
(electrical sensitivity)
Electrostatic discharge voltage (human body
model)
VESD(HBM)
1. All 3.3 V power (VDD, VDDA) and ground (VSS, VSSA) pins must always be connected to the external 3.3 V
supply.
2. IINJ(PIN) must never be exceeded (see Table 5: Current characteristics). This is implicitly insured if VIN
maximum is respected. If VIN maximum cannot be respected, the injection current must be limited
externally to the IINJ(PIN) value. A positive injection is induced by VIN>VDD while a negative injection is
induced by VIN < VSS
.
Table 5.
Symbol
IVDD
IVSS
Current characteristics
Ratings
Max.
Unit
Total current into VDD power lines (source)(1)
Total current out of VSS ground lines (sink)(1)
Output current sunk by any I/O and control pin
Output current source by any I/Os and control pin
Injected current on NRST pin
150
150
25
IIO
−25
± 5
± 5
± 5
± 25
mA
(2)(3)
IINJ(PIN)
Injected current on HSE OSC_IN and LSE OSC_IN pins
Injected current on any other pin(4)
(2)
ΣIINJ(PIN)
Total injected current (sum of all I/O and control pins)(4)
1. All 3.3 V power (VDD, VDDA) and ground (VSS, VSSA) pins must always be connected to the external 3.3 V
supply.
2. IINJ(PIN) must never be exceeded. This is implicitly insured if VIN maximum is respected. If VIN maximum
cannot be respected, the injection current must be limited externally to the IINJ(PIN) value. A positive
injection is induced by VIN > VDD while a negative injection is induced by VIN < VSS
.
3. Negative injection disturbs the analog performance of the device. See note in Section 5.3.17: 12-bit ADC
characteristics.
4. When several inputs are submitted to a current injection, the maximum ΣIINJ(PIN) is the absolute sum of the
positive and negative injected currents (instantaneous values). These results are based on
characterization with ΣIINJ(PIN) maximum current injection on four I/O port pins of the device.
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STMICROELECTRONICS [ ST ]
